Differentials of One Variable

  • Static Fields 2023 (7 years) Find the total differential of the following functions:
    1. \(y=3x^2 + 4\cos 2x\)
    2. \(y=3x^2\cos kx\) (where \(k\) is a constant)
    3. \(y=\frac{\cos 7x}{x^2}\)
    4. \(y=\cos(3x^2-2)\)